Pms

I am a 38-yr-old woman, new here, so please excuse me! PMS symptoms seem to have gotten worse, I feel 15-yrs-old again every month! Are there any other women out there who are dealing with this issue? Or anyone who can give some advice on this? The doctors say it's normal, but I was curious to see if others are going through the same thing...I have hypothyroidism, Fredriech's Ataxia, IBS and am on a Gluten-Free diet. Does anyone think that these things are affecting my monthly cycles; worsening PMS?